Laboratory research of hydraulic fracturing with tangential loading of borehole wall

All-Russian Conference on Challenges for Development in Mining Science and Mining Industry devoted to the 85th anniversary of Academician Mikhail Kurlenya

Kurlenya, M.V.^1 ; Patutin, A.V.^1 ; Rybalkin, L.A.^1 ; Serdyukov, S.V.^1 ; Shilova, T.V.^1

Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia^1

关键词: Borehole wall;    Breakdown pressure;    Circular grooves;    Organic glass;    Shearing stress;    Tangential loading;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/53/1/012011/pdf
DOI  :  10.1088/1755-1315/53/1/012011

来源: IOP

【 摘 要 】

Under study is transverse fracturing of an organic glass block through secondary shearing stress applied to the borehole wall. To this effect, a system composed of a press sealer and a collet anchor manufactured in two options has been designed. It is shown than an anchor with a circular groove allows reducing breakdown pressure and enables effective transverse fracture at the borehole bottom.